REVOLUTION COUNTER T 460

To measure engine or vacuum pump revolutions. This is an optic meter, a reflective marker is paste in the axe and in the distance there is a digital reading. Technical Data:Measuring Ranges: 100 a 29,999 rpm Resolutions: 0,1 rpm (100 a 999 rpm) 1 rpm (1000 a 29,999 rpm) Accuracies: + - (0,02% del v.m) Units: rpm Temp.: 0 a 50º C Kind of batteries. Alcalines (2 * AAA) Dimensions: 119 * 46 * 25 mm Include: Carry strap Batteries, protection cap 4 reflective markers